90-MXBK20-A0UAYZ ASRock ATX Single AM5 4 DIMM Slots Mainboard

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Product line:

Phantom Gaming

See other ASRock products

€205.00

In stock

Happyware Article Number:

SH4M3108-406805

Manufacturer Number:

90-MXBK20-A0UAYZ

Brand:

ASRock

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Description Technical details Warranty & Technical Support Reviews Bulk Deals

90-MXBK20-A0UAYZ

High-Performance ATX AM5 Motherboard featuring PCIe Gen5 NVMe expansion with the 90-MXBK20-A0UAYZ

The 90-MXBK20-A0UAYZ is an ASRock Phantom Gaming B650 PG Lightning ATX motherboard built around the AMD B650 chipset for AMD Ryzen processors on the AM5 (LGA1718) platform. It is engineered for workstation and creator deployments that need high-frequency DDR5 memory scaling, modern I/O, and a clean PCIe topology suited to single-GPU builds with fast NVMe storage.

With 4 DDR5 DIMM slots in dual-channel, the 90-MXBK20-A0UAYZ supports up to 256GB non-ECC memory, aligning well with compile, content creation, and virtualization labs where capacity and bandwidth both matter. Storage is optimized around 3 M.2 2280 M-Key sockets, including PCIe Gen5 capability for high-throughput NVMe, complemented by 4 SATA III ports for tiered SSD/HDD pools and RAID-enabled configurations. Expansion is delivered via a primary PCIe 4.0 x16 slot for a discrete GPU plus additional PCIe 4.0 slots for capture, NICs, or HBA-class cards without constraining front-end performance.

Why Choose the 90-MXBK20-A0UAYZ?

The 90-MXBK20-A0UAYZ provides a practical density-to-performance profile for AM5 builds: Gen5-ready NVMe lanes for scratch and dataset acceleration, DDR5 headroom for memory-resident workflows, and 2.5GbE for faster east-west traffic on modern access networks. BIOS Flashback supports streamlined fleet bring-up and recovery, while TPM support aligns OS deployment with enterprise security baselines.

ASRock designs this platform with a focus on electrical stability, validated firmware behavior, and component selection appropriate for sustained duty cycles, targeting compatibility with current data centre and office infrastructure standards where predictable operations and serviceability are priorities.

Key Applications:

AM5 workstation and creator PCs
Single-GPU desktop compute nodes
Gen5 NVMe scratch and media pipelines
Multi-drive SATA and M.2 storage builds
TPM-enabled OS rollouts

At Happyware - Server Hardware you benefit from non-binding offers tailored to your AM5 build and rollout requirements, and an extended warranty up to 6 years to secure longer lifecycle planning for deployments based on the 90-MXBK20-A0UAYZ.

Technical details of 90-MXBK20-A0UAYZ

CPU Socket: AM5

Onboard Memory: No

RAID Support: Yes

CPU Manufacturer: AMD

CPU Supported Type: Ryzen

Form Factor: ATX

Chipset: AMD B650

RAM Maximum Capacity: 256GB

Max RAM Frequency : 6400MHz

RAM Slots: 4 DIMM DDR5

RAM Channels: Dual-Channel

PCIe Slots: 1 PCIe 4.0 x16, 2 PCIe 4.0 x1

M.2 Slots: 1 PCIe 3.0 M.2 2230 E-Key, 3 PCIe 5.0 M.2 2280 M-Key

Network Ports: 1 RJ45 2.5 Gbps

ECC Support: Non-ECC

Onboard Network: Ethernet

Performance Class: Mid-Range

Onboard CPU: No

RAID Support: Yes

Onboard Graphic: Yes

Video Output: 1x HDMI 2.1

USB Ports: 1x USB 3.2 Gen 2x2 Type-C, 4x USB 2.0 Type-A, 7x USB 3.2 Gen 1 Type-A

Trusted Platform Module (TPM): Yes

BIOS: AMI UEFI

Wi-Fi Support: None

Onboard Audio Chipset: Realtek ALC897

Embedded: No

How long is the Warranty and how you can get technical support for 90-MXBK20-A0UAYZ

Warranty:	12 months (part)
RMA Url:	https://www.asrock.com/support/?cat=RMA
Description:	Items must be returned first for RMA processing. No advanced replacements.